反应详情

A mixture of 4-chloro-6-methoxy-7-nitroquinazoline hydrochloride (784 mg, 2.8 mmol) and 2-fluoro-5-methoxycarbonyloxy-4-methylaniline (621 mg, 3.1 mmol), (prepared as described for the starting material in Example 26), in isopropanol (10 ml) was heated at reflux for 2 hours. The mixture was allowed to cool, the precipitated product collected by filtration, washed with isopropanol, ether and dried under vacuum to give 4-(2-fluoro-5-methoxycarbonyloxy-4-methylanilino)-6-methoxy-7-nitroquinazoline hydrochloride (1.12 g, 90%).

1. custom(prepared
2. temperaturewas heated
3. temperatureat reflux for 2 hours
4. temperatureto cool
5. filtrationthe precipitated product collected by filtration
6. washwashed with isopropanol, ether
7. customdried under vacuum